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@burglekitt/gmt

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Temporal-based date and time utilities with timezone support and polyfill integration

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export type UnixUnit = "seconds" | "milliseconds"; /** * Return true when `unit` is a valid UnixUnit. * * - Valid units are: "seconds", "milliseconds". * - Accepts any input type and returns false for non-string values. * - Uses type assertion to narrow the type. * * @param unit candidate value of any type * @returns boolean indicating whether the unit is a valid UnixUnit * * @example isValidUnixUnit("seconds") // true * @example isValidUnixUnit("milliseconds") // true * @example isValidUnixUnit("invalid") // false * @example isValidUnixUnit(123) // false * @example isValidUnixUnit(null) // false */ export declare function isValidUnixUnit(unit: unknown): unit is UnixUnit;